Bobbin holder



July 26, 1960 A. H. BAHNSON, JR

BC'BBIN HOLDER 2 Sheets-Sheet 1 Filed June 28, 1956 lib r a W7 I a 2 mf. m a u F A w -HWN1J l Gttbmego July 26, 1960 A. H. BAHNSON, JR 3BOBBIN HOLDER Filed June 28, 1956 2 Sheets-Sheet 2 attorneg hired ratesnoBsrN HOLDER I V Filed June 28, 1956, Ser. No. 594,450

4 Claims. emu-130.2

The present invention relates to textile processing machinery such asspinning frames, drawing frames and the like wherein a plurality oftextile strands are processed simultaneously, the strands being storedon bobbins mounted on the machine.

Moreparticularly, the invention relates to an improved construction fora bobbin holder of the suspension type, the holder comprising a pair ofspring loaded jaws over which the end of the tubular bobbin is forced totheon position, these jaws including offset or shoulder portions whichcooperate with and press outwardly against complementary shoulderportions in the bore of the bobbin thereby to support the bobbin inplace on the dependent holder.

In accordance with a further feature of the invention, the springloading of the jaws of the holder is established by a hairpin type ofspring which is readily removable from the jaws for replacement with asimilarly configured spring but which has a different springcharacteristic in order to establish a correcpondingly difierent springloading characteristic on the jaws. The different alternatively usablesprings also establish different distances'between the jaws themselves.Such construction, providing a readily exchangeable loading spring isadvantageous in that it enables the spring loading ofthe holder to bereadily adapted for supporting different sizes and weights of bobbins orpackages such asap 8 r4; a l X 5, or a 12 x 6 /2, with the right amountof spring tension so that the bobbin will be suspended safely from theholder and yet without exerting such a strong spring force as would makeit difiicult to press the jaws together when attaching or removing abobbin from its holder. I

The new type of bobbin holder is especially suited for suspensionmounting of bobbins upon a skeletonized type of creel wherein the longconventional creel board is replaced with parallel spaced,longitudinally extending and longitudinally slotted runners or rails,and it is a further object of this invention to provide a novelstructure for mounting each bobbin holder at. any desired position alongone of the rails, the mounting structure being retained in place by aspring force which is readily releasable thereby enabling the mountingto be quickly attached, detached, or relocated to a new position alongthe rail.

The foregoing as Well as; other objects and advantages inherent in theinvention will become more apparent from the following detaileddescription of a preferred embodiment of the invention when consideredwith the accompanying drawings. In the drawings:

Fig. 1 is an end elevation of the bobbin holder and its support shownattached to a rail of a skeletonized creel;

Fig. 1a is a fragmentary sectional view of a portion of one jaw of thebobbin holder;

Fig. 2 is a partially sectioned side elevation of the bobbin holder andsupport;

Fig. 3 is an end elevation of the support for the bobbin holder; I

Figs. 4 and 5 are perspective views of the support for the bobbinholder;

2,946,537 Patented July 25, 1960 Fig. 6 is an end elevation showing thesupport in the process of beingremoved or installed on the rail of thecreel;

Fig. 7 is a vertical section through the'supportfor the bobbin holdertaken on'line 7-7 of Fig. 2;

Figs. 8 and 9 are end and side elevations, respectively, of one of thespring elements by which the jaws of the bobbin holder are loaded;

' Fig. 10 is a view similar to Fig. 8 showing a loading spring which hasa" lighter loading characteristic than that of Fig. 8 and which isadapted for supporting bobbins of correspondingly less weight;

Fig. 11 is a view showing a development of the loading spring of Figs. 8and'9; and

Fig. 12 is a top plan of the blank from which the support for the bobbinholder is made.

With reference now to the drawings'the body of the bobbin holder isformed from a blank of metallic material such as for Example 18 gaugestainless steel bent'into generally inverted U-shape to establish twodepending arms 1, 2 which are given a spoon like configuration. The bowlportions 1a, 2a of the spoon shaped arms face inwardly towards eachother and are located at the lower portions of the arms. The sides ofthe arms 1, 2 are flanged at 1b and 2b to establish channels forreceiving the arms 3, 4 of a loading spring member 5 also of invertedU-shape which can be made from fiat steel strip material of suitablethickness of the order of 2".

As shown in the drawing, the arms 3, 4 of the spring are located betweenand press outwardly against the arms 1, 2 of the bobbin holder. Thelower portions 3a, 4a of the spring arms are bent outwardly so as topress against the inner sides of the bowl portions 1a, 2a and the springis retained in position between the arms of the bobbin holderby'establishing a detachable connection therebetween which, in theillustrated embodiment, comprises a tongue 2c struck out from the bowlportion 2a as shown in Fig. 1a, which fits into a correspondinglylocated aperture 6 in the spring arm 2. Thelower end of spring arm 4 isextended to form a hook portion 7 that reaches across and behind andengages the lower end of the arm 1 thus acting as a stop to limitseparation of the arms 1, 2 brought about by the laterally outward forceexerted by the spring arms '3, 4.

The bobbin 8 is placed on the holder by pushing it upward. As the bobbinmoves upward against the bowl portions re, 2a the latter are movedinwardly toward each other against a counter pressure exerted by thespring arms 3, 4. As upward movement of the bobbin continues, the bowlportions 10:, 2a'clear the uniformly diametered portion 8aof thebore inthe bobbin and engage the outwardly tapered or shoulder portion 8b ofthe bobbin bore.

This permits the bowl portions 1a, 2a to move outwardly and come to restin the positions shown in Fig. 1 thus holding the bobbin in place.'Toremove the bobbin, a downward pull is exerted thus moving the bowlportions 1a, 2a close enough together so as to pass the uniformlydiametered portion 8a of the bore in thebobbin. 1

V In Fig. 10 is shown another loading spring 10 similar in structure toand interchangeable with the spring 5 but which is inade from thinnergauge stock. This spring accordingly possesses a lighter springcharacteristic and is adapted for supporting abobbin of lighter weight.

h? h P rtion 11 of the spring i l n' hat shorter than the hook portion 7011' the avier spring shown in Fig. 8 so as t9 h the 2 of the lholdercloser together. Thisalsois in keeping with the difierences in size andweightsbt bobbins since the smaller bobbins have correspondingly bobbinsor packages come in several different sizes and Weights such as an 8 x4, a 10 x or a 12 x 6 /2 and hence a different spring is designed tofurnish the desiredamount of tension for each size and weight ofpackage, the springs being interchangeable'with each other on the samebobbin holder. Fig. 11 shows the blank of spring metal utilized in theformation of the resilient springs.

This invention also provides an improved construction for suspensionmounting of the bobbin holders upon a skeletonized type of creel. Such acreel includes a plurality of parallel spaced horizontal rails extendinglongitudinally along the textile processing machine in lieu of the longconventional creel boards, and a short longitudinal section of one suchrail is shown at 12 in Fig. 2. End views of the rail are seen in Figs.1, 6 and 7. The rail 12 is characterized by a slot 13 centrally locatedin the lower face of the rail and which extends for the full operatinglength of the textile machine. The rail itself may have any desiredconfiguration and is shown here as being of triangular shape whichprovides the necessary longitudinal rigidity when the least amount ofmaterial.

In accordance with the present invention, the support for the bobbinholder is so constructed as to enable one to readily install the same inany desired position along the the length of the rail. In particular,the support is formed from a blank of spring steel and includes spacedflanges extending laterally from each side thereof which embrace themarginal portions of the slot in the rail.

Fig. 12 shows the blank from which the support 15 is formed in to theconfiguration shown in Figs. 4 and 5. The central body portion 15a isflat and provided with a centrally located cup-shaped aperture 15b forreceiving a bearing and depending pin assembly from which the bobbinholder is suspended. The ends of the support include portions 15c offsetupwardly from the central portion 15a and parallel therewith and fromwhich L- shaped portions 15d are extended downwardly at a steep angle.The L-shaped portions 15d are parallel and the base portions 15e whichface outwardly lie below the side edge 15 of the body portion 15a by adistance generally equal to the thickness of the stock from which rail12 is formed. The opposite side of the body portion 15a, as is shown inFig. 5, includes a centrally located laterally projecting flange 15g anddownwardly extending L-shaped portions 15h at each side of the flange15g having their base portions 15i facing outward and lying below flange15g by a distance generally equal to the thickness of the rail stock 12.

As is now evident, the base portions 15a in cooperation with the sideedge portion 15 constitute spaced flanges which are adapted to embraceone edge portion .of the slot 13 in rail 12, and the base portions 151'in cooperation with the flange 15g similarly constitute spaced flangeswhich are adapted to embrace the opposite edge portion of slot 13 asshown in Figs. 1, 2 and 7. Since the support-15 is made from arelatively thin spring steel blank of the order of thickness and thedownwardly extending L-shaped portions 15d have considerable length,they can be flexed inwardly by pressure from the fingers to the positionshown in Fig. 6 until the oppositely located flange 15g clears the edgeof slot 13. In this manner, the support 15 can be easily removed from orinstalled on the rail 13 at any desired location therealong. Since theflange spacing is generally equal to the thickness of the rail stock andthe resilient L-shaped portions 15h are pressed inwardly from theirnormal free position to a vertical position when the support isinstalled on the rail, the restoring force inherent in the portions 15hserves to prevent the support 15 from creeping along the rail.

The bearing and pin assembly previously referred to for supporting thebobbin holder, and shown best in Fig. 7, comprises an arcuately shapedbearing member 16 seated in the aperture 15b and including a centralvertical bore 16a for receiving a pin 17. The upper end of the latter isheaded at 17a so as to hold the pin in the bearing, and the lower end ofthis pin which passes through an aperture 18 in the upper end of thebobbin holder is likewise headed at 17b to prevent the bobbin holderfrom becoming detached from the pin. The diameter of aperture 15b islarger than that of pin 17 so as to enable the pin 17 and its bearingmember 16 to have a swivel action, in the support 15, and consequentlythe longitudinal axis of the bobbin holder is freely angularly movableabout the vertical centerline of the aperture 15b.

Thus it is apparent that my invention provides novel suspension meansfor mounting bobbins upon a skeletonized type of creel and novel holdermeans for removably supporting the bobbin in the vertical windingposition.

While in accordance with the statutes I have illustrated and describedthe best form and embodiment of my invention known to me, it will beapparent to those skilled in the art that various modifications andimprovements may be devised without deviating from the scope of myinvention as defined in the appended claims.

I claim:

1. A holder for substantially cylindrical textile machine bobbinscomprising means for removably securing a bobbin to said holder, saidbobbin securing means including a plurality of jaw members adapted to beinserted Within the bore of said bobbin, said jaw members beingconstituted by depending portions of an inverted U-shaped member formedfrom a metallic blank, and an inverted U-shaped spring formed from flatmaterial, said spring being removably positioned between and having thearms thereof contacting the inner surfaces of said jaw members therebyto urge said jaw members apart to firmly contact the walls of the bobbinbore.

2. A bobbin holder as defined in claim 1 wherein one of the arms of saidspring has a hook portion at the lower end thereof adapted to cooperatewith the opposite jaw member to form stop means for limiting the extentof separation of said jaw members within said bobbin bore.

3. A bobbin holder as defined in claim 2 wherein one of the arms of saidspring has an aperture therein and the jaw associated with said arm hasa projection on the inner surface thereof adapted to cooperate with saidaperture to align and retain said spring within said jaws.

4. A holder for substantially cylindrical bobbins for use in textilemachines having a creel rail with a longitudinal slot in the lowersurface thereof comprising in combination means for removably securing abobbin to said holder, said bobbin securing means including a pluralityof jaw members adapted to be inserted within the bore of said bobbin andspring means disposed between and engaging said jaw members to apply anoutward force thereto thereby urging said jaw members apart to firmlycontact the walls of the bobbin bore, said spring means being removablefrom said jaw members for replacement with a similar spring means havinga different spring characteristic, resilient bracket means cooperatingwith said slot to removably secure said bobbin holder to said creelrail, and a swivel connection joining said bobbin securing means to saidresilient bracket means.

References Cited in the file of this patent UNITED STATES PATENTS1,821,706 Hasbrouck Sept. 1, 1931 2,038,286 Hasbrouck et al. Apr. 21,1936 2,636,696 McBride Apr. 28, 1953 2,774,549 Rulon-Miller et a1 Dec.18, 1956 2,833,490 Quint May 6, 1958

